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| Identification of Refractory Organics in Pulping and Papermaking Waste Water Using Wheat Straw Pulp as Raw Material |
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| DOI：10.11981/j.issn.1000-6842.2018.04.12 |
| Key Words:wheat straw pulp; waste water; refractory organics; CODCr； GC-MS； UV254 |
| Fund Project:陕西省教育厅专项科研计划项目（No.18JK1021）。 |
| Author Name | Affiliation | | SONG Xiao-qiao1，* | 1.Xi’an University of Architecture and Technology Huaqing College， Xi’an， Shaanxi Province， 710043 | | LIU Gang2 | 2.Shaanxi Hailan Environmental Protection Technology Co.， Ltd.， Xi’an， Shaanxi Province， 710043 | | LI Tian-xin3 | 3.School of Civil and Environmental Engineering， Beijing University of Science and Technology， Beijing， 100083 | | SONG Shao-hua1 | 1.Xi’an University of Architecture and Technology Huaqing College， Xi’an， Shaanxi Province， 710043 |
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| Abstract: |
| The CODCr concentration of papermaking waste water using wheat straw pulp as raw material is still rather higher after treating with the coagulation-nuclear flocculation process mainly due to its difficult biodegradability， the residual CODCr in the treated waste water always is a difficult problem. To explore its causes， pre- and post-treatment waste water were analyzed by GC-MS and UV254. The results showed that， small molecules organic contaminants remained in the water was the main reason causing high CODCr， such as 1，2-benzenedicarboxylic acid， bis（2-methylpropyl） ester and 1，2-benzenedicarboxylic acid， mono（2-ethylhexyl） ester. The results also indirectly indicated that the combination process had good effect on the refractory aromatic macromolecule organic pollutants， and could improve biodegradability of the waste water． |
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